Is there any verse in the Holy Quran that provides a clear definition of who should be considered Muslim?
Some extremist groups of Muslims use their own definition of Muslim and call some other Muslims unbeliever (Kaafir) for political and worldly purposes. (Takfir)
So I would like to see how the Holy Quran defines Muslim. Please support your answers with verses and their respective translations from the Holy Quran.
In other words:
What are minimum requirements of being considered as a Muslim according to Islam and Quran?